Required to live at motel where I work and pay rent weekly out of my check, is there a deduction I can claim?

Hello, a friend told me I should look into seeing if there are any deductions available for me and I'm having trouble finding answers. I work and live at a motel and am technically available 24 hr. I have no other home therefore would not be able to work here without living on site. I am required to pay rent each week, however somewhat reduced, out of my weekly check and am paid on commission. Is there any technical way I can claim a deduction?